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On the surface or down below: Field observations reveal a high degree of surface activity in a burrowing crayfish, the Little Brown Mudbug (Lacunicambarus thomai)

Diehl, Kaine M ; Storer, Nicoleena M ; Wells, Hogan D ; Davis, Destinee A ; Loughman, Zachary J ; Graham, Zackary A Bersier, Louis-Felix

PloS one, 2022-10, Vol.17 (10), p.e0273540-e0273540 [Periódico revisado por pares]

San Francisco: Public Library of Science

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  • Título:
    On the surface or down below: Field observations reveal a high degree of surface activity in a burrowing crayfish, the Little Brown Mudbug (Lacunicambarus thomai)
  • Autor: Diehl, Kaine M ; Storer, Nicoleena M ; Wells, Hogan D ; Davis, Destinee A ; Loughman, Zachary J ; Graham, Zackary A
  • Bersier, Louis-Felix
  • Assuntos: Animal behavior ; Behavior ; Behavioral biology ; Biology and Life Sciences ; Burrowing behavior ; Camcorders ; Cameras ; Circadian rhythms ; Crayfish ; Earth Sciences ; Ecology ; Ecology and Environmental Sciences ; Engineering and Technology ; Environmental aspects ; Groundwater ; Identification and classification ; Night ; Phylogeny ; Population ; Social Sciences ; Surface activity ; Vegetation ; Video recorders ; Water, Underground
  • É parte de: PloS one, 2022-10, Vol.17 (10), p.e0273540-e0273540
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
    Competing Interests: The authors have declared that no competing interests exist.
  • Descrição: Opposed to most crayfish species that inhabit permanent bodies of water, a unique burrowing lifestyle has evolved several times throughout the crayfish phylogeny. Burrowing crayfish are considered to be semi-terrestrial, as they burrow to the groundwater-creating complex burrows that occasionally reach 3 m in depth. Because burrowing crayfishes spend most of their lives within their burrow, we lack a basic understanding of the behavior and natural history of these species. However, recent work suggests that burrowing crayfishes may exhibit a higher level of surface activity than previously thought. In the current study, we conducted a behavioral study of the Little Brown Mudbug, Lacunicambarus thomai using video surveillance to determine their degree of surface activity and behavioral patterns. Throughout 664 hrs of footage, we observed a surprisingly high amount of activity at the surface of their burrows-both during the day and night. The percentage of time that individual crayfish was observed at the surface ranged from 21% to 69% per individual, with an average of 42.48% of the time spent at the surface across all crayfish. Additionally, we created an ethogram based on six observed behaviors and found that each behavior had a strong circadian effect. For example, we only observed a single observation of foraging on vegetation during the day, whereas 270 observations of this behavior were documented at night. Overall, our results suggest that burrowing crayfishes may exhibit higher levels of surface activity than previously thought. To increase our understanding of burrowing crayfish behaviors ecology, we encourage the continued use of video-recorded observations in the field and the laboratory.
  • Editor: San Francisco: Public Library of Science
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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